Decentralized Optimal Control of a Microgrid with Solar PV, BESS and Thermostatically Controlled Loads

Wenhao Zhuo, Andrey V. Savkin and Ke Meng
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Wenhao Zhuo: School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW 2052, Australia
Andrey V. Savkin: School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW 2052, Australia
Ke Meng: School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW 2052, Australia

Energies, 2019, vol. 12, issue 11, 1-15

Abstract: Constructing microgrids with renewable energy systems could be one feasible solution to increase the penetration of renewable energy. With proper control of the battery energy storage system (BESS) and thermostatically controlled loads (TCLs) in such microgrids, the variable and intermittent energy can be smoothed and utilized without the interference of the main power grid. In this paper, a decentralized control strategy for a microgrid consisting of a distributed generator (DG), a battery energy storage system, a solar photovoltaic (PV) system and thermostatically controlled loads is proposed. The control objective is to maintain the desired temperature in local buildings at a minimum cost. Decentralized control algorithm involving variable structure controller and dynamic programming is used to determine suitable control inputs of the distributed generator and the battery energy storage system. The model predictive control approach is utilized for long-term operation with predicted data on solar power and outdoor temperature updated at each control step.

Keywords: control of microgrids; control of renewable power systems; optimal control; decentralized control; battery energy storage systems; variable structure control; solar PV; thermostatically controlled loads; model predictive control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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